CVE-2023-43657 — Improper escaping of encrypted topic titles can lead to Cross-site Scripting under non-default site configuration
discourse-encrypt is a plugin that provides a secure communication channel through Discourse. Improper escaping of encrypted topic titles could lead to a cross site scripting (X…
Published: 2023-09-28 · CVSS: 7.2 · CVSS 3.1
discourse-encrypt is a plugin that provides a secure communication channel through Discourse. Improper escaping of encrypted topic titles could lead to a cross site scripting (XSS) issue when a site has content security policy (CSP) headers disabled. Having CSP disabled is a non-default configuration, and having it disabled with discourse-encrypt installed will result in a warning in the Discourse admin dashboard. This has been fixed in commit `9c75810af9` which is included in the latest version of the discourse-encrypt plugin. Users are advised to upgrade. Users unable to upgrade should ensure that CSP headers are enabled and properly configured.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7